The testing significance and working principle of halogen pretreatment oxygen bomb combustion test device

As a key equipment for material combustion performance testing, the stability of the igniter of the Xinsheng Zhuorui oxygen bomb combustion test device directly determines the accuracy of the testing data and the safety of the test. In the combustion test of halogen containing materials (such as fluorine, chlorine, bromine polymer materials, flame retardant composite materials, etc.), halogen elements are prone to generate corrosive gases (such as HCl, HBr) at high temperatures, which can adhere to the surface of igniter electrodes, leads and other components for a long time, causing oxidation corrosion, poor contact, ignition failure and other problems, seriously affecting the repeatability of the test and the service life of the equipment.

The halogen pretreatment technology can effectively remove residual halogen pollutants on the surface of the igniter through targeted cleaning, protection, and activation treatment, form a corrosion-resistant protective film, avoid electrode oxidation and rust, and ensure stable transmission of ignition energy. Its application value is not only reflected in improving the accuracy of detection data (such as reducing measurement errors of indicators such as oxygen index and combustion heat value), but also in extending the replacement cycle of igniters and reducing equipment maintenance costs. It is particularly suitable for batch testing scenarios in industries such as electronics, building materials, and automotive parts, providing reliable equipment support for material combustion performance evaluation.

The ZR-YDRSY oxygen bomb combustion test device developed and produced by Beijing Xinsheng Zhuorui Technology Co., Ltd. is used in the following areas: oxygen bomb combustion test device, also known as halogen determination pretreatment device, composed of customized oxygen bomb, pressure reducing valve, oxygenation instrument, electronic pulse igniter, etc. Mainly used in laboratories, research institutions, university laboratories, third-party quality inspection units, for testing flammable liquids, powder materials, halogens, plasticizers and other flammable substances, as well as for analyzing the combustion and residual state of materials. It is also used for quantitative analysis of heavy metals and harmful halogen elements in electrical plastic products and circuit boards. It is used for pre-treatment of waste halogen samples, ion chromatography analysis of solid (or liquid) samples after combustion in oxygen bombs, and absorption of combustion gases by absorption liquids. It is also used as a sample pre-treatment device for ion chromatography analysis.

Working Principle:

The sample burns, oxidizes and decomposes solid and liquid organic samples under the action of high-pressure oxygen in a closed system, converting them into chlorides, bromides, etc. that can be absorbed by the solution. An absorbent solution is placed inside the oxygen bomb to collect and absorb the decomposed halogens. The absorbed solution can be quantitatively tested for halogen and sulfur content using external standard methods such as ion chromatography, ion selective electrode method, photometry, or titration.